Chadden Hunter / Entering the ice caves of Mount Erebus, Antarctica. Taken on location for BBC Frozen Planet series, 2009
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Chadden Hunter / Person standing infront of long icicles, outside volcanic ice cave, Mount Erebus, Antarctica. Taken on location for BBC Frozen Planet series, 2009
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Michel Roggo / Sea ice, with Mount Terror (left) and Mount Erebus, Ross Island, Ross Sea, Antarctica. Photographed for The Freshwater Project
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Michel Roggo / Aerial view of sea ice, near Mount Erebus Ross Island, Ross Sea, Antarctica. Photographed for The Freshwater Project.
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Michel Roggo / Sea ice and iceberg, Mount Erebus, Ross Island, Ross Sea, Antarctica. Photographed for The Freshwater Project
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Michel Roggo / Sea ice, near Mount Erebus, Ross Sea, Antarctica. Photographed for The Freshwater Project
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Michel Roggo / Sea ice, near Mount Terror and Mount Erebus Ross Sea, Antarctica. Photographed for The Freshwater Project
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Colin Monteath/ Hedgehog House / Volcano spouting steam, Mount Erebus, Ross Island, Antarctica
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Chadden Hunter / Stormy conditions at the entrance to ice caves of Mount Erebus, Antarctica. Taken on location for BBC Frozen Planet series, 2009
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Chadden Hunter / Stormy conditions outside the entrance to ice caves of Mount Erebus, Antarctica. Taken on location for BBC Frozen Planet series, 2009
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Chadden Hunter / Filming around the extremely delicate ice formations in volcanic ice cave, Mount Erebus, Antarctica. Taken on location for BBC Frozen Planet series, 2009
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Chadden Hunter / Entering the ice caves of Mount Erebus, Antarctica. Taken on location for BBC Frozen Planet series, 2009